Winding device, and method for performing a winding shaft change in a winding device
First Claim
1. In a device for winding up a continuously arriving foil web into a coil on a winding shaft, having a rotatably driveable contact roller for feeding the foil web in a conveying device, and assigned to the contact roller a winding station for the winding shaft for winding the coil, a take-up station for receiving a fresh winding shaft used during a winding shaft change in the winding station for being exchanged with the winding shaft on which a coil of the foil web has been wound, and a transverse cutting device for transversely cutting the foil web between the winding station and the take-up station, wherein during the winding shaft change the winding shaft supporting the coil is removed out of the winding station, wherein the transverse cutting device for transversely cutting the foil web can be moved from a rest position into a working position, wherein while cutting the foil web a leading end piece of the following foil web is formed, wherein a leading end piece of the foil web thus formed can be conducted to the fresh winding shaft located in the take-up station and can be wound on the fresh winding shaft, and wherein after receiving the leading end piece of the foil web the fresh winding shaft can be transferred from the take-up station into the winding station, the improvement comprising:
- when viewed in a conveying direction of the foil web (1), a charging device (6) and a blower device (7) provided downstream of the take-up station (III) receiving the fresh winding shaft (3), the leading end piece (10) of the foil web (1) formed by the transverse cutting device (4) electrostatically chargeable by the charging device (6), and an air stream generated by the blower device (7) acting on the leading end piece (10) of the foil web in an area between the contact roller (2) and the end piece of the foil web (1).
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Accused Products
Abstract
A method and a device for winding a continuously arriving foil web into a coil on a winding shaft, having a rotatably driveable contact roller, a winding station assigned to the contact roller for the winding shaft for winding the coil, a take-up station for receiving a fresh winding shaft and taking up the foil web, a transverse cutting device between the winding station and the take-up station for transversely cutting the foil web, wherein a charging station for creating an electrostatic charge between the winding shaft and the foil web and a blower device are assigned to the take-up station for the fresh winding shaft.
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Citations
14 Claims
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1. In a device for winding up a continuously arriving foil web into a coil on a winding shaft, having a rotatably driveable contact roller for feeding the foil web in a conveying device, and assigned to the contact roller a winding station for the winding shaft for winding the coil, a take-up station for receiving a fresh winding shaft used during a winding shaft change in the winding station for being exchanged with the winding shaft on which a coil of the foil web has been wound, and a transverse cutting device for transversely cutting the foil web between the winding station and the take-up station, wherein during the winding shaft change the winding shaft supporting the coil is removed out of the winding station, wherein the transverse cutting device for transversely cutting the foil web can be moved from a rest position into a working position, wherein while cutting the foil web a leading end piece of the following foil web is formed, wherein a leading end piece of the foil web thus formed can be conducted to the fresh winding shaft located in the take-up station and can be wound on the fresh winding shaft, and wherein after receiving the leading end piece of the foil web the fresh winding shaft can be transferred from the take-up station into the winding station, the improvement comprising:
when viewed in a conveying direction of the foil web (1), a charging device (6) and a blower device (7) provided downstream of the take-up station (III) receiving the fresh winding shaft (3), the leading end piece (10) of the foil web (1) formed by the transverse cutting device (4) electrostatically chargeable by the charging device (6), and an air stream generated by the blower device (7) acting on the leading end piece (10) of the foil web in an area between the contact roller (2) and the end piece of the foil web (1). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14)
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13. In a method for winding a continuously arriving foil web into a coil on a winding shaft and for performing a winding shaft change for exchanging the winding shaft on which the coil has been wound for a fresh winding shaft, having a winding device with a contact roller over which the foil web is supplied and is received on a winding shaft rolling off on the contact roller and is wound to form the coil, and having a transverse cutting device for the foil web for cutting the foil web while forming a leading end of the following cut-off foil web and for placing on a fresh winding shaft, and a conveying device for conveying the fresh winding shaft to be exchanged for the winding shaft on which the coil has been wound during a winding shaft change, wherein at a start of the winding shaft change the fresh winding shaft is placed on the contact roller while forming a contact gap, and the foil web is cut one of prior to passing through the contact gap and after having passed through the contact gap, and the leading end of the foil web formed during cutting is taken up by the fresh winding shaft, the improvement comprising:
- the leading end (10) of the foil web being electrostatically charged prior to being taken up by the fresh winding shaft (3) and being deflected from the contact roller (2) by a blast air directed toward a circumference of the fresh winding shaft (3).
Specification